1.HomeAdView
package com.tengw.jinhuaqi.view;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import android.content.Context;
import android.os.Handler;
import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.tengw.jinhuaqi.R;
import com.tengw.jinhuaqi.entity.AdvertEntity;
import com.tengw.jinhuaqi.util.LayoutUtil;
import com.tengw.jinhuaqi.util.LogUtil;
import com.tengw.jinhuaqi.util.StringUtil;
/**
* 首页广告
* @author xcp001
*
*/
public class HomeAdView extends LinearLayout
{
private Context context;
private TextView title;//新闻标题
private LinearLayout dotView;
private ViewPager viewPager;
private List<View> views = new ArrayList<View>();
private List<View> dots = new ArrayList<View>();
private int currentItem;
private List<AdvertEntity> adList = new ArrayList<AdvertEntity>();
private ScheduledExecutorService scheduledExecutorService;
/**
* 切换当前显示的图片
*/
private Handler handler = new Handler()
{
public void handleMessage(android.os.Message msg)
{
// 切换当前显示的图片
viewPager.setCurrentItem(currentItem);
};
};
public HomeAdView(Context context, AttributeSet attrs)
{
super(context, attrs);
this.context = context;
LayoutInflater.from(context).inflate(R.layout.advert_layout, this);
dotView = (LinearLayout) findViewById(R.id.dot);
title = (TextView) findViewById(R.id.tv_title);
viewPager = (ViewPager) findViewById(R.id.vp);
// 设置填充ViewPager页面的适配器
viewPager.setAdapter(new MyAdapter());
// 设置一个监听器，当ViewPager中的页面改变时调用
viewPager.setOnPageChangeListener(new MyPageChangeListener());
}
/**
* 更新页面
*/
public void updateView(List<AdvertEntity> adList)
{
this.adList = adList;
if (adList.size() == 0)
{
return;
}
views.clear();
dots.clear();
dotView.removeAllViews();
int size = adList.size();
AdvertEntity info = null;
for (int i = 0; i < size; i++)
{
info = adList.get(i);
ImageView imageView = new ImageView(context);
// String minImg=StringUtil.getMinUrl(info.getPhotoUrl());
LayoutUtil.setBitmap(imageView, info.getImgUrl());
//TODO 测试
// imageView.setImageResource(info.getImgId());
imageView.setScaleType(ScaleType.FIT_XY);
views.add(imageView);
imageView = new ImageView(context);
imageView.setImageResource(R.drawable.gsdt_icondian2);
dots.add(imageView);
if (views.size() == 1)
{
views.get(0).setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
LogUtil.i("=pos11=", "");
// callback.gotoAdDetail(0);
}
});
}
title.setText(info.getDesc());
}
for (int i = 0; i < dots.size(); i++)
{
dotView.addView(dots.get(i));
}
viewPager.setAdapter(new MyAdapter());
onStart();
}
private AdviewCallback callback;
public interface AdviewCallback
{
void gotoAdDetail(int position);
}
public void setCallback(AdviewCallback callback)
{
this.callback = callback;
}
public void onStart()
{
LogUtil.i("=onStart=", "" + views.size());
onStop();
if (views.size() > 1)
{
scheduledExecutorService = Executors
.newSingleThreadScheduledExecutor();
// 当Activity显示出来后，每两秒钟切换一次图片显示
scheduledExecutorService.scheduleAtFixedRate(new ScrollTask(), 1,
3, TimeUnit.SECONDS);
}
}
public void onStop()
{
// 当Activity不可见的时候停止切换
if (scheduledExecutorService != null)
{
scheduledExecutorService.shutdown();
}
}
/**
* 换行切换任务
*
* @author Administrator
*
*/
private class ScrollTask implements Runnable
{
public void run()
{
synchronized (viewPager)
{
currentItem = (currentItem + 1) % views.size();
handler.obtainMessage().sendToTarget(); // 通过Handler切换图片
}
}
}
/**
* 当ViewPager中页面的状态发生改变时调用
* @author Administrator
*/
private class MyPageChangeListener implements OnPageChangeListener
{
/**
* This method will be invoked when a new page becomes selected.
* position: Position index of the new selected page.
*/
public void onPageSelected(final int position)
{
currentItem = position;
LogUtil.i("=dots=", dots.size() + "");
for (int i = 0; i < dots.size(); i++)
{
dots.get(i).setBackgroundResource(R.drawable.gsdt_icondian2);
}
dots.get(position).setBackgroundResource(R.drawable.gsdt_icondian1);
//TODO 切换标题
if (null != adList.get(position)
&& !StringUtil
.isStringEmpty(adList.get(position).getDesc()))
{
title.setText(adList.get(position).getDesc());
}
else
{
title.setText("");
}
views.get(position).setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
LogUtil.i("=pos=", "" + position);
// callback.gotoAdDetail(position);
}
});
}
public void onPageScrollStateChanged(int arg0)
{
}
public void onPageScrolled(int arg0, float arg1, int arg2)
{
}
}
/**
* @author xcp001
*
*/
private class MyAdapter extends PagerAdapter
{
@Override
public int getCount()
{
return adList != null ? adList.size() : 0;
}
@Override
public Object instantiateItem(View arg0, int arg1)
{
if (views.size() == 0)
{
return null;
}
((ViewPager) arg0).addView(views.get(arg1));
return views.get(arg1);
}
@Override
public void destroyItem(View arg0, int arg1, Object arg2)
{
((ViewPager) arg0).removeView((View) arg2);
}
@Override
public boolean isViewFromObject(View arg0, Object arg1)
{
return arg0 == arg1;
}
@Override
public void restoreState(Parcelable arg0, ClassLoader arg1)
{
}
@Override
public Parcelable saveState()
{
return null;
}
@Override
public void startUpdate(View arg0)
{
}
@Override
public void finishUpdate(View arg0)
{
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<FrameLayout
android:id="@+id/frameView"
android:layout_width="match_parent"
android:layout_height="@dimen/ad_h" >
<android.support.v4.view.ViewPager
android:id="@+id/vp"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<!-- android:background="#33000000" -->
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="@dimen/ad_title_h"
android:layout_gravity="bottom"
android:background="#66000000"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:id="@+id/tv_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:ellipsize="marquee"
android:paddingLeft="@dimen/padding_15px"
android:paddingRight="@dimen/padding_15px"
android:singleLine="true"
android:textColor="#ffffff"
android:textSize="@dimen/text_size_16" />
<LinearLayout
android:id="@+id/dot"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:gravity="center_vertical"
android:orientation="horizontal"
android:paddingRight="@dimen/padding_15px" >
</LinearLayout>
</RelativeLayout>
</FrameLayout>
</RelativeLayout>
package com.tengw.jinhuaqi.entity;
/**
* 广告
*/
public class AdvertEntity
{
private int id;
private String imgUrl;
private String desc;
private String type;
private String content;
public String getContent()
{
return content;
}
public void setContent(String content)
{
this.content = content;
}
public String getType()
{
return type;
}
public void setType(String type)
{
this.type = type;
}
public int getId()
{
return id;
}
public void setId(int id)
{
this.id = id;
}
public String getImgUrl()
{
return imgUrl;
}
public void setImgUrl(String imgUrl)
{
this.imgUrl = imgUrl;
}
public String getDesc()
{
return desc;
}
public void setDesc(String desc)
{
this.desc = desc;
}
}
/**广告*/
private List<AdvertEntity> adList = new ArrayList<AdvertEntity>(); AdvertEntity entity;
for (int i = 0; i < 5; i++)
{
entity = new AdvertEntity();
entity.setContent("广告" + i);
entity.setDesc("广告描述" + i);
entity.setImgUrl("/advert/patient/139883303682425453170.jpg");
adList.add(entity);
}滚动广告——viewpager,布布扣,bubuko.com
原文地址：http://blog.csdn.net/u012252502/article/details/25614667
